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Abstract Title:

Epigenetic Regulation of Metabolism and Inflammation by Calorie Restriction.

Abstract Source:

Adv Nutr. 2019 Mar 27. Epub 2019 Mar 27. PMID: 30915465

Abstract Author(s):

Diego Hernández-Saavedra, Laura Moody, Guanying Bianca Xu, Hong Chen, Yuan-Xiang Pan

Article Affiliation:

Diego Hernández-Saavedra

Abstract:

Chronic caloric restriction (CR) without malnutrition is known to affect different cellular processes such as stem cell function, cell senescence, inflammation, and metabolism. Despite the differences in the implementation of CR, the reduction of calories produces a widespread beneficial effect in noncommunicable chronic diseases, which can be explained by improvements in immuno-metabolic adaptation. Cellular adaptation that occurs in response to dietary patterns can be explained by alterations in epigenetic mechanisms such as DNA methylation, histone modifications, and microRNA. In this review, we define these modifications and systematically summarize the current evidence related to CR and the epigenome. We then explain the significance of genome-wide epigenetic modifications in the context of disease development. Although substantial evidence exists for the widespread effect of CR on longevity, there is no consensus regarding the epigenetic regulations of the underlying cellular mechanisms that lead to improved health. We provide compelling evidence that CR produces long-lasting epigenetic effects that mediate expression of genes related to immuno-metabolic processes. Epigenetic reprogramming of the underlying chronic low-grade inflammation by CR can lead to immuno-metabolic adaptations that enhance quality of life, extend lifespan, and delay chronic disease onset.

Study Type : Review

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